The Domesday Book of 1086 AD lists King William the Conqueror's tenants-in-chief in Derbyscire (Derbyshire), following the Norman Conquest of England:King William, the first Norman King of England and he was Duke of Normandy from 1035. Bishop of Chester Abbey of Burton Earl Hugh of Chester contributed 60 ships to the invasion of England, but did not fight at the Battle of Hastings. Roger de Poitou, his father Roger de Montgomery was one of William the Conqueror's main advisers. Henry de Ferrers, served William the Conqueror and his successor King William II in administrative roles. William Peverel, granted over a hundred manors in central England from the king, forming the Honour of Peverel, in Nottinghamshire and Derbyshire, including Nottingham Castle. He also built Peveril Castle at Castleton in Derbyshire. Walter D'Aincourt, was connected by marriage to William the Conqueror and was awarded over 70 manors in the East Midlands and Yorkshire. Geoffrey Alselin Ralph son of Hubert (FitzHubert),, son of Hubert de Corcun (Derei). Ralph de Buron Hascoit Musard de Bretagne, served in the Breton section of William the Conqueror's army at the Battle of Hastings and was granted 25 manors in 6 English counties. He established his family estate at Staveley, Derbyshire. Gilbert de Gant (Ghent),, was related to William the Conqueror's wife. Nigel de Stafford, son of Robert de Stafford of Belvoir Castle. Robert Curthose, son of William the Conqueror and succeeded him as Duke of Normandy in 1087 AD. Roger de Busli, granted 86 manors in Nottinghamshire, 46 in Yorkshire, and others in Derbyshire, Lincolnshire, Leicestershire and Devon. They became the Honour of Blyth. King's Thanes